/** @file

  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include <Library/IoLib.h>
#include <Library/DebugLib.h>

#include <Omap3530/Omap3530.h>

VOID
ClockInit (
  VOID
  )
{
  //DPLL1 - DPLL4 are configured part of Configuration header which OMAP3 ROM parses.

  // Enable PLL5 and set to 120 MHz as a reference clock.
  MmioWrite32 (CM_CLKSEL4_PLL, CM_CLKSEL_PLL_MULT(120) | CM_CLKSEL_PLL_DIV(13));
  MmioWrite32 (CM_CLKSEL5_PLL, CM_CLKSEL_DIV_120M(1));
  MmioWrite32 (CM_CLKEN2_PLL, CM_CLKEN_FREQSEL_075_100 | CM_CLKEN_ENABLE);

  // Turn on functional & interface clocks to the USBHOST power domain
  MmioOr32(CM_FCLKEN_USBHOST, CM_FCLKEN_USBHOST_EN_USBHOST2_ENABLE
                              | CM_FCLKEN_USBHOST_EN_USBHOST1_ENABLE);
  MmioOr32(CM_ICLKEN_USBHOST, CM_ICLKEN_USBHOST_EN_USBHOST_ENABLE);

  // Turn on functional & interface clocks to the USBTLL block.
  MmioOr32(CM_FCLKEN3_CORE, CM_FCLKEN3_CORE_EN_USBTLL_ENABLE);
  MmioOr32(CM_ICLKEN3_CORE, CM_ICLKEN3_CORE_EN_USBTLL_ENABLE);

  // Turn on functional & interface clocks to MMC1 and I2C1 modules.
  MmioOr32(CM_FCLKEN1_CORE, CM_FCLKEN1_CORE_EN_MMC1_ENABLE
                            | CM_FCLKEN1_CORE_EN_I2C1_ENABLE);
  MmioOr32(CM_ICLKEN1_CORE, CM_ICLKEN1_CORE_EN_MMC1_ENABLE
                            | CM_ICLKEN1_CORE_EN_I2C1_ENABLE);

  // Turn on functional & interface clocks to various Peripherals.
  MmioOr32(CM_FCLKEN_PER, CM_FCLKEN_PER_EN_UART3_ENABLE
                          | CM_FCLKEN_PER_EN_GPT4_ENABLE
                          | CM_FCLKEN_PER_EN_GPIO2_ENABLE
                          | CM_FCLKEN_PER_EN_GPIO3_ENABLE
                          | CM_FCLKEN_PER_EN_GPIO4_ENABLE
                          | CM_FCLKEN_PER_EN_GPIO5_ENABLE
                          | CM_FCLKEN_PER_EN_GPIO6_ENABLE);
  MmioOr32(CM_ICLKEN_PER, CM_ICLKEN_PER_EN_UART3_ENABLE
                          | CM_ICLKEN_PER_EN_GPT3_ENABLE
                          | CM_ICLKEN_PER_EN_GPT4_ENABLE
                          | CM_ICLKEN_PER_EN_GPIO2_ENABLE
                          | CM_ICLKEN_PER_EN_GPIO3_ENABLE
                          | CM_ICLKEN_PER_EN_GPIO4_ENABLE
                          | CM_ICLKEN_PER_EN_GPIO5_ENABLE
                          | CM_ICLKEN_PER_EN_GPIO6_ENABLE);

  // Turn on functional & inteface clocks to various wakeup modules.
  MmioOr32(CM_FCLKEN_WKUP, CM_FCLKEN_WKUP_EN_GPIO1_ENABLE
                           | CM_FCLKEN_WKUP_EN_WDT2_ENABLE);
  MmioOr32(CM_ICLKEN_WKUP, CM_ICLKEN_WKUP_EN_GPIO1_ENABLE
                           | CM_ICLKEN_WKUP_EN_WDT2_ENABLE);
}
